SPECIFICALLY - let me ask this. I have a 2wd expy. We're in Florida, so lets be honest. I really don't NEED 4x4.
But we have the "slippery" and "trail mode" drive modes. I know on the Bronco, the drive modes tend to use the brakes as traction advantage devices to prevent slipping, not unlike having lockers. Do the drive modes in the expy do sorta the same thing? I.e. will the slippery mode utilize the brakes to send power to the non-spinning wheel?
I have no way of testing.
The modes do what are described in the manual.
if you put it in slippery, it will adjust the throttle tip-in, smoothing your starts to reduce potential wheel spin.
Traction control will use brakes to adjust wheel spin where possible, or reduce engine power to reduce wheel spin.
in 4x4 the modes provide more utility based on the type of mode selected.
in short, "do they work", yes, but they don't overcome physics.
